# Companies and Customers

- [Approval Service](/api-references/api-guides/companies-and-customers/approval-service.md)
- [Approval Tutorials](/api-references/api-guides/companies-and-customers/approval-service/approval.md)
- [API Reference](/api-references/api-guides/companies-and-customers/approval-service/approval-api-reference.md)
- [Approvals](/api-references/api-guides/companies-and-customers/approval-service/approval-api-reference/approvals.md)
- [Approval](/api-references/api-guides/companies-and-customers/approval-service/approval-api-reference/approval.md)
- [Search](/api-references/api-guides/companies-and-customers/approval-service/approval-api-reference/search.md)
- [Models](/api-references/api-guides/companies-and-customers/approval-service/approval-api-reference/models.md)
- [Customer Management](/api-references/api-guides/companies-and-customers/client-management.md)
- [Customer Management Tutorial](/api-references/api-guides/companies-and-customers/client-management/customer-management.md)
- [API Reference](/api-references/api-guides/companies-and-customers/client-management/api-reference.md)
- [Locations](/api-references/api-guides/companies-and-customers/client-management/api-reference/locations.md)
- [Contact Assignments](/api-references/api-guides/companies-and-customers/client-management/api-reference/contact-assignments.md)
- [Legal Entities](/api-references/api-guides/companies-and-customers/client-management/api-reference/legal-entities.md)
- [Models](/api-references/api-guides/companies-and-customers/client-management/api-reference/models.md)
- [Customer Service (Customer Managed)](/api-references/api-guides/companies-and-customers/customer-management.md): Customer-managed
- [Customer Management (Customer Managed) Tutorial](/api-references/api-guides/companies-and-customers/customer-management/customer-management-tutorial.md)
- [API Reference](/api-references/api-guides/companies-and-customers/customer-management/api-reference.md)
- [Account and profile](/api-references/api-guides/companies-and-customers/customer-management/api-reference/account-and-profile.md)
- [Addresses](/api-references/api-guides/companies-and-customers/customer-management/api-reference/addresses.md)
- [Authentication and authorization](/api-references/api-guides/companies-and-customers/customer-management/api-reference/authentication-and-authorization.md)
- [Credentials](/api-references/api-guides/companies-and-customers/customer-management/api-reference/credentials.md)
- [Double opt In](/api-references/api-guides/companies-and-customers/customer-management/api-reference/double-opt-in.md)
- [Models](/api-references/api-guides/companies-and-customers/customer-management/api-reference/models.md)
- [Customer Service (Tenant Managed)](/api-references/api-guides/companies-and-customers/customer-service.md): Tenant-managed
- [Customer Service (Tenant Managed) Tutorial](/api-references/api-guides/companies-and-customers/customer-service/customer-service-tenant.md)
- [API Reference](/api-references/api-guides/companies-and-customers/customer-service/api-reference.md)
- [Account and profile](/api-references/api-guides/companies-and-customers/customer-service/api-reference/account-and-profile.md)
- [Addresses](/api-references/api-guides/companies-and-customers/customer-service/api-reference/addresses.md)
- [Models](/api-references/api-guides/companies-and-customers/customer-service/api-reference/models.md)
- [Customer Segments](/api-references/api-guides/companies-and-customers/customer-segments.md)
- [Segments Tutorial](/api-references/api-guides/companies-and-customers/customer-segments/segments.md)
- [API Reference](/api-references/api-guides/companies-and-customers/customer-segments/api-reference.md)
- [Segments](/api-references/api-guides/companies-and-customers/customer-segments/api-reference/segments.md)
- [Customers Assignments](/api-references/api-guides/companies-and-customers/customer-segments/api-reference/customers-assignments.md)
- [Items Assignments](/api-references/api-guides/companies-and-customers/customer-segments/api-reference/items-assignments.md)
- [Models](/api-references/api-guides/companies-and-customers/customer-segments/api-reference/models.md)
- [Vendor Service](/api-references/api-guides/companies-and-customers/vendor-service.md)
- [Vendor Tutorial](/api-references/api-guides/companies-and-customers/vendor-service/vendor.md)
- [API Reference](/api-references/api-guides/companies-and-customers/vendor-service/api-reference.md)
- [Vendors](/api-references/api-guides/companies-and-customers/vendor-service/api-reference/vendors.md)
- [Locations](/api-references/api-guides/companies-and-customers/vendor-service/api-reference/locations.md)
- [Models](/api-references/api-guides/companies-and-customers/vendor-service/api-reference/models.md)